Rank	Countries/Territories	Count	Percent
1	United States	307	26.9%
2	China	237	20.8%
3	Japan	161	14.1%
4	Germany	92	8.1%
5	India	48	4.2%
6	France	48	4.2%
7	Canada	40	3.5%
8	Singapore	29	2.5%
9	Brazil	23	2%
10	Russia	21	1.8%
11	Korea, Republic of	15	1.3%
12	United Kingdom	14	1.2%
13	Netherlands	12	1.1%
14	Iran, Islamic Republic of	12	1.1%
15	Italy	10	0.9%
16	Ireland	8	0.7%
17	Argentina	7	0.6%
18	Poland	7	0.6%
19	Sweden	7	0.6%
20	Taiwan	6	0.5%
21	Israel	5	0.4%
22	Greece	5	0.4%
23	Cyprus	3	0.3%
24	Spain	3	0.3%
25	New Zealand	3	0.3%
26	Portugal	2	0.2%
27	Malaysia	2	0.2%
28	Mexico	2	0.2%
29	Australia	2	0.2%
30	Ecuador	2	0.2%
31	Hong Kong	1	0.1%
32	Algeria	1	0.1%
33	Czech Republic	1	0.1%
34	Cuba	1	0.1%
35	South Africa	1	0.1%
36	Pakistan	1	0.1%
37	Philippines	1	0.1%
38	Latvia	1	0.1%